Excelsior-machine



UNITED STATES ATENT Fries.

VIRGIL L. \VILLIAMS, OF CLARKSTON, GEORGIA.

EXCELSlOR-MACHINE.

SPECIFICATION forming part of Letters Patent No. 449,097, dated March24, 1891.

Application filed May 23, 1890. Serial No. 352,934. (No model.)

To all whom it may concern.-

Be itknown that I, VIRGIL L. IVILLIAMS, a citizen of the United S ates,and a resident of Clarkston, in the county of De Kalb and State ofGeorgia, have invented certain new and useful Improvements inExcelsior-Machines;

and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to letters ofreference marked thereon,which form a part of this specification.

This invention relates to machines for shaving wood, producing substancecommercially known as excelsior, relating more especially to the classof machines forsuch purpose which employ a rotary wheel, the objectbeing to produce a device of this class which will not be open to theobjections heretofore experiencedin excelsior-machines, the details ofall of which will be hereinafter fully described, and the parts thoughtto be new specifically pointed out in the claim.

In the accompanying drawings, Figure l is a plan of the machine, givinga top view of the operative parts thereof, being a section on line 1 1,Fig. 2. Fig. 2 shows the device in side elevation, further illustratingthe parts shown in Fig. 1 as they are fully assembled 111 a machine.Fig. 3 is a detail of the rotary scorers, showing them journaled in thewheel. Fig. at is a detail of the knife, being a vertical sectionthrough said knife and portion of the wheel wherein it is seated. Fig. 5is a detail of the split nut operating to cause the leadscrew to pressthe feed-plates when closed thereon. Fig. 6 is a detailof a portion ofthe wheel, showing therein the rotary scorers and indicating theposition relative to the periphery of the wheel of the cam-surface,giving end motion to the scorers.

In the figures, like reference-marks indieating corresponding parts inthe several views, the frame A is composed of top and bottom timbers aand a, respectively, cruciform in arrangement, each extremity of the topbeing connected with corresponding extremity at the bottom by verticalpieces (L The shaft B is journaled in a suitable step set at the pointofintersection of the timbers a, and in a suitable journal-bearing passingthrough the intersection of the pieces a, said shaft having securedthereto the wheel 0, and in the construction shown a driving-pulley Dand a pulley E, which drives the feed, as hereinafter set forth. Theupper side of the wheel 0 is its operative face, while in order to givestrength the arms 0 are set at a downward angle to the hub, which issuitably secured to the shaft B at a point considerably below the planeof the operative face of the wheel. The wheel 0 carries cutting-knives cand the scorers 0 The knife 0 is set therein by being bolted to thelip 0which projects downwardly from the under side of the wheel, said knifeprojecting upwardly through a suitable throat or recess in thewheel.This knife may be set radially in said wheel or at an angle to theradius thereof, as found most desirable. The scorers c consist ofcircular plates of steel suitably beveled on their edges to cut orindent the surface of the bolt, being removably secured between nuts 0on the shaft 0 which shaft is suitably journaled in the wheel 0, beinglet into said wheel in a recess and having play therein endwise of theshaft 0 and radially ofthe wheel. Owing to the circular motion of theoperative face of the wheel 0, the scorers would cut the arc of a circleon the bolt, which would make very brittle eXcelsior by reason of itbeing crossgrained. In order to obviate this difficulty the shaft 0''has, as hereinbefore stated, endplay radially of the wheel, which isproduced by the abutment of the outer end of the shaft 0 against theface fof the block F, which said face is tangent or parallel to atangent of the periphery of the wheel 0, which will, as seen onreference to Fig. .6, force the said shaft 0 inwardly during half of itscontact with the surface f, while the spring 0 will force it outwardlyduring the rest of its contact, and thus the motion of the scorers 0will be parallel to the surface f so long as it shall be in a positioncontacting with the surface F.

Pivoted to the cross-pieces G, extending between corresponding uprightsd, are plates H, preferably of wood, which are so arranged that they maybe brought down nearly to the face of the wheel 0 and radially acrossthe same, their downward motion being limited at a point just elearofthe knives and scorers by means of a screw f, passing upwardly throughthe block F, against which the said plate may contact, and by screwingthe screw in or out the limit of downward motion of the plate II isregulated. The belt is placed between the cr0ss-pieces G in contact withthe face of the wheel O, and this plate It is brought to bear on itstop, after which the split nut 1, depending from the arm of the plate H,is caused to engage with the screwJ by means of the ring '5 being forcedup on the diverging arms of the split nut. The split nut is adapted andthe screw J cut a proper length to allow said nut to be run oil the endof the said screw at the time the plate It contacts with the screw f.The screw 1, as best shown in Fig. 2, depends from and is journaled inthe extremities of the cruciform top of the frame, and is driven by thebelt K from a shaft 13.

A very desirable system of belting is shown surrounding the said screwJ, and the ring t for bringing the nut I in engagement with the screw J,substantially as and for the purpose specified.

In testimony whereof I hereunto ailix my signaturein presence of twowitnesses.

VIRGIL ll. WILLIAMS.

W itnesses:

A. 1. W001), M. Woon.

